Ricoh R3111x Series Manual do Utilizador Página 1

Consulte online ou descarregue Manual do Utilizador para Detetores de radar Ricoh R3111x Series. R3114 Manual do Utilizador

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R3114x SERIES
0.8% LOW VOLTAGE DETECTOR
NO.EA-160-080226
1
OUTLINE
The R3114x series are CMOS-based voltage detector ICs with high detector threshold accuracy and ultra-low
supply current, which can be operated at an extremely low voltage and is used for system reset as an example.
Each of these ICs consists of a voltage reference unit, a comparator, resistors for detector threshold setting,
an output driver and a hysteresis circuit. The detector threshold is fixed with high accuracy internally and does
not require any adjustment.
Two output types, Nch open drain type and CMOS type are available.
The R3114x series are operable at a lower voltage than that of the R3111x series, and can be driven by a
single battery.
Three types of packages, SOT-23-5, SC-82AB, and DFN(PLP)1010-4 are available.
FEATURES
Supply Current ......................................................................Typ. 0.35μA (VDET=1.5V, VDD=−VDET+1V)
Range of Operating Voltage..................................................0.5V to 6.0V (T
opt=25°C)
Detector Threshold Range....................................................Stepwise setting with a step of 0.1V in the range
of 0.7V to 5.0V
Accuracy Detector Threshold................................................
±0.8% (VDET
>
=
1.5V)
Temperature-Drift Coefficient of Detector Threshold ............Typ.
±30ppm/°C
Output Types.........................................................................Nch Open Drain "L" and CMOS
Packages ..............................................................................SOT-23-5, SC-82AB, DFN(PLP)1010-4
APPLICATIONS
CPU and Logic Circuit Reset
Battery Checker
Window Comparator
Wave Shaping Circuit
Battery Back-up Circuit
Power Failure Detector
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Resumo do Conteúdo

Página 1 - R3114x SERIES

R3114x SERIES 0.8% LOW VOLTAGE DETECTOR NO.EA-160-080226 1 OUTLINE The R3114x series are CMOS-based voltage detector ICs with high detector thresho

Página 2 - SELECTION GUIDE

R3114x 10 OPERATION • Operation of R3114xxx1A Vref Ra Rb Rc VDDOUTGNDTr.1 NchComparator OUT pin should be pulled-up toVDD or an external voltage l

Página 3 - PIN DESCRIPTIONS

R3114x 11 • Operation of R3114xxx1C Vref Ra Rb Rc VDD OUT GND Tr.1NchPchComparator Block Diagram (R3114xxx1C) tPLHGND GND VDDL-VDET+VDETDetector

Página 4 - ABSOLUTE MAXIMUM RATINGS

R3114x 12 TEST CIRCUITS GND VDD VIN ISS R3114xSeries GNDVDDVINR3114xSeriesOUT 470kΩ 5V or VDD VOUT Supply Current Test Circuit Detector Th

Página 5 - ELECTRICAL CHARACTERISTICS

R3114x 13 TYPICAL CHARACTERISTICS 1) Supply Current vs. Input Voltage R3114x071A/C R3114x151A/C 04256317Input Voltage VDD (V)Supply Current ISS

Página 6 - *2: In case of CMOS type

R3114x 14 R3114x271A/C R3114x451A/C Temperature Topt (°C)2.652.902.852.802.752.70-VDET+VDET-40 7550025-25 85Detector Threshold/Released VoltageV

Página 7 - TIMING CHART

R3114x 15 R3114x071A R3114x151A 0 0.80.4 0.60.2 1.0Input Voltage VDD (V)Output Voltage VOUT (V)0632145470kΩ 5V Pull-UpTopt=- 40°CTopt=25°CTopt=85

Página 8 - R3114x071A/C to R3114x501A/C

R3114x 16 R3114x271A/C R3114x451A/C 0 2.01.0 2.51.50.5 3.0Input Voltage VDD (V)Nch Driver Output Current IOUT (mA)07.54.56.03.01.5Topt=- 40°CTop

Página 9 - −VDET)+2.0V

R3114x 17 6) Pch Driver Output Current vs. Input Voltage (VDS=−2.1V) R3114x071C R3114x151C 06352417Input Voltage VDD (V)Pch Driver Output Cur

Página 10 - • Explanation of operation

R3114x 18 R3114x271C R3114x451C 0425316VDS (V)Pch Driver Output Current IOUT (mA)02.51.00.51.52.0VDD=5.0VVDD=4.0VVDD=6.0VVDD=3.0V 0425316VDS (V)

Página 11 - • Operation of R3114xxx1C

R3114x 19 TYPICAL APPLICATION • R3114xxx1A CPU Reset Circuit 1 (Nch Open Drain Output) Case1. Input Voltage to R3114xxx1A is equal to Input Voltage

Página 12

R3114x 2 BLOCK DIAGRAMS Nch Open Drain Output (R3114xxx1A) CMOS Output (R3114xxx1C) OUTVDD Vref GND OUTVDD GNDVref SELECTION GUIDE The p

Página 13 - Supply Current ISS (μA)

R3114x 20 • Voltage level Indicator Circuit (lighted when the power runs out) (Nch Open Drain Output) R3114xxx1A Series VDD GND OUT VDD • Dete

Página 14 - VDET (V)

R3114x 21 • Window Comparator Circuit (Nch Open Drain Output) R3114xxx1A VDD GND OUT VDDR3114xxx1A Series VDD GND OUT −VDET1 WC_OUTSeries Rup1 Rup2

Página 15 - Nch Driver Output Current I

R3114x 22 TECHNICAL NOTES When R3114xxx1A/C is used in Figure X, if the value of R1 is set excessively large, the dropdown voltage caused by the c

Página 16

PACKAGE INFORMATION PE-DFN(PLP)1010-4-071010 • DFN(PLP)1010-4 Unit: mm PACKAGE DIMENSIONS AB1.001.000.050.05 S× 40.05 ABSM0.25±0.050.48±0.050.25±0

Página 17 - DS=−2.1V)

PACKAGE INFORMATION PE-DFN(PLP)1010-4-071010 POWER DISSIPATION (DFN(PLP)1010-4) This specification is at mounted on board. Power Dissipation (PD) d

Página 18 - Pch Driver Output Current I

PACKAGE INFORMATION PE-SOT-23-5-071228 • SOT-23-5 (SC-74A) Unit: mm PACKAGE DIMENSIONS 2.9±0.2 0.4±0.11.9±0.2 (0.95) (0.95)54123+0.2−0.11.6+0.2−0

Página 19

PACKAGE INFORMATION PE-SOT-23-5-071228 POWER DISSIPATION (SOT-23-5) This specification is at mounted on board. Power Dissipation (PD) depends on co

Página 20

PACKAGE INFORMATION PE-SC-82AB-0512 • SC-82AB Unit: mm PACKAGE DIMENSIONS 0.3±0.232141.3±0.20.3±0.1 0.3±0.1(0.7)0.9±0.10 to 0.10.3±0.10.4±0.10.05

Página 21 - • Window Comparator Circuit

PACKAGE INFORMATION PE-SC-82AB-0512 POWER DISSIPATION (SC-82AB) This specification is at mounted on board. Power Dissipation (PD) depends on condit

Página 22 - TECHNICAL NOTES

MARK INFORMATIONME-R3114K-080222 R3114K SERIES MARK SPECIFICATION • DFN(PLP)1010-4 1 2 4 3 1 2 3 4 1, 2 : Product Code (refer to Part Number v

Página 23 - TAPING SPECIFICATION

R3114x 3 PIN CONFIGURATIONS • DFN(PLP)1010-4* Top View 21 34 Bottom View 1243 • SOT-23-5 • SC-82AB 1 4 5 23 (mark side) 12 3 4(mark side)

Página 24 - RECOMMENDED LAND PATTERN

MARK INFORMATIONME-R3114N-080222 R3114N SERIES MARK SPECIFICATION • SOT-23-5 (SC-74A) 1 2 3 4 5 1 to 3 : Product Code (refer to Part Number

Página 25

MARK INFORMATIONME-R3114Q-080222 R3114Q SERIES MARK SPECIFICATION • SC-82AB 2 4 1 3 1, 2 : Product Code (refer to Part Number vs. Product Code) 3

Página 26 - POWER DISSIPATION (SOT-23-5)

R3114x 4 ABSOLUTE MAXIMUM RATINGS Symbol Item Rating Unit VDD Supply Voltage 7.0 V Output Voltage (Nch Open Drain Output) VSS−0.3 to 7.0 VOUTOut

Página 27 - TAPING REEL DIMENSIONS

R3114x 5 ELECTRICAL CHARACTERISTICS • R3114x071A/C values indicate −40°C< = Topt< = 85°C, unless otherwise noted. Topt=25°C Symbol It

Página 28 - POWER DISSIPATION (SC-82AB)

R3114x 6 • R3114x271A/C values indicate −40°C< = Topt< = 85°C, unless otherwise noted. Topt=25°C Symbol Item Conditions Min. Typ. M

Página 29 - MARK INFORMATION

R3114x 7 TIMING CHART Detector ThresholdtPLHGND GND VDDL -VDET +VDET Detector Threshold Released Voltage Minimum Operating VoltagePull-up Voltage Su

Página 30

R3114x 8 ELECTRICAL CHARACTERISTICS BY DETECTOR THRESHOLD • R3114x071A/C to R3114x501A/C < < Bold values are checked and guaranteed by design

Página 31

R3114x 9 Nch Driver Output Current1 Nch Driver Output Current2 Pch Driver Output Current Nch Driver Leakage Current Detector Threshold Temperat

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